21026408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1117}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 42729960

約数和(自身を除く): 21703552

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 181, 362, 724, 1117, 1448, 2234, 2353, 4468, 4706, 8936, 9412, 14521, 18824, 29042, 58084, 116168, 202177, 404354, 808708, 1617416, 2628301, 5256602, 10513204, 21026408]

約数ペア:

[(1, 21026408), (2, 10513204), (4, 5256602), (8, 2628301), (13, 1617416), (26, 808708), (52, 404354), (104, 202177), (181, 116168), (362, 58084), (724, 29042), (1117, 18824), (1448, 14521), (2234, 9412), (2353, 8936), (4468, 4706)]